Even though I have been trying to sell a lot of my sirens I found this on eBay the other day and couldn't pass it up. It is a 6-port Kidde CO2 powered fire suppression siren. Before a CO2 fire suppression system would discharge this would go off beforehand to warn of the impending release of CO2 gas. It is made mostly of brass with a steel grille. I believe a few others on here may have one of these but I don't believed they have been discussed in-depth before.

so is the siren itself powered by co2? or is it motor powered.also, it looks amazing! great find!

Try reeling in a giant salmon for once!
also, you might want to See about getting a siren for your house!
fire alarms r cool too
Resident of Portland/Beaverton Area, And own a Model L
Hope to Get An M2 Or An M5
and 13.5 yrs old